Apparatus for tanning



L. SIMPSON.

APPARATUS FOR TANNING.

(No Model.)

No. 313,542. Patented a1". 10, 1885.

WWW M9.

NITEI) 'ATENT Erica.

LENOX SIMPSON, OF PITTSBURG, PENNSYLVANIA.

APPARATUS FOR TANNlNG.

EEEPECIFICATION forming part of Letters Patent No. 313,542, dated March10,1885.

Application filed September 16, 1884. (No model.)

To all whom it may concern.-

Be it known that I, LENOX SIMPSON, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inApparatus for Tanning Hides, of which the following is a full, clear,and exact description.

The invention relates to improvements in that class of tanning apparatusin which the hides are revolved in an air-tight vat from which the airis exhausted.

The invention consists in a revolving removable hide-frame, in means forsecuring said frame in place within the vat, and in various details ofconstruction, all of which will be more fully and at large set forth.

In the drawings, Figure 1 represents a side elevation, partly insection, of the apparatus. Fig. 2 represents a transverse section of thevat, and Fig.3 a detail of the hide-frame, wheels, and axles.

Similar letters of reference indicate corresponding parts throughout thedifferent views.

A represents a hollow cylinder, of wood or other suitable material,secured to a foundation, a, and having one of its ends closed by a fixedhead, 'A", and the other extremity by a movable head, A The fixed head Ahas a short revolving shaft, B, passed through its center. Said shaft isproperly packed to prevent leakage, and has its inner extremity.

angled for the purpose'hereinafter set forth. Outside of the'vat theshaft is provided with a pulley .or other suitable device, I), by meansof which it may be revolved.

The liquor may be conducted from the vat in either of two ways, to wit:First, the shaft B may be hollow, its inner extremity closed, andprovided with radial orifices b, and its outer extremity connected by asuitable joint with the discharge-pipe G and exhaust-pipe D, as shown inFig. l; or, second, the short shaft may be solid and the discharge-pipeconnected with the vat at some other part.

The vat A is provided upon the outer side of its open end with anangle-ring, 6, provided with bolt-holes. The head A is provided withother bolt-holes registering with those of the ring. An elastic gasket,e, is interposed with it, is a neck, 12 to which is secured an arm,

F, whose free extremity is hinged to a crossbeam, f. v By this means thehead, when loose, may be swung upward and out of the way. A pipe, G,provided with a cock, g, connects with feedpipe B, and allows ingress ofair to the vat when desirable. A flexible pipe, H, connects the end ofpipe B with asupply-tank, K, and is provided with a cock, h, by means ofwhich the amount of liquor supplied to the vat may be regulated. WVithinthe vat are two longitudinal rails, Z, on which travels a hide-frame, L.The latter is provided with two pairs of wheels, Z. Each pair of wheelsis carried by a crank-shaft, l and the two crank-shafts are connected bya horizontal bar. A lever, lVI, connected with the front crank-shaft,and fulcrunied on the frame, allows the four wheels to be simultaneouslylowered or raised, and a hook link or other suitable device holds thelever in place when the wheels are raised. At the center of the two endsof the frame are sockets Z adapted to receive the inner solid ends ofthe supply and discharge pipes. The socket designed to receive pipe B issquared, while that in which the end of pipeB rests is conical. By thismeans the frame is made to revolve with pipe B and upon pipe B.

The operation is as follows: The hides are secured to the frame and thelatter run into the vat in the manner described in an application ofeven date herewith, marked A. When the frame has reached its properposition, the socket nearest the discharge end of the cylinder will havefitted itself over the inner extremity of the pipe or shaft B. Two boltsor rests are then run inward from the sides of the tank beneath the endof the frame. The head is then secured in place (in the mannerdescribedin the before-mentioned application) and the bolts or restswithdrawn. The head, in closing, pushes the conical end of the pipe Binits socket, and the frame is thus securely suspended with the cylinder.Liq: nor is now allowed to flow into the cylinder until the latter isabout half filled, when the frame is revolved, as before described.Atintervals the air is exhausted from the cylinder, (while theframestill continues to revolve, and this is continued until the hidesare tanned.

What I claim is 1. An exhaust tanningvat provided with a removablehide-frame having the cranks Z carrying wheels Z Z, substantially as andfor the purposes described.

2. The combination,with the vatAand hidefranie L, of the revolving pipeB, provided with lateral orifices b, and having squared inner end,substantially as and for the purposes set forth.

' 3. The combination, with the vat A and hide-frame L, of the revolvingpipe B, having squared inner extremity, and the immovable pipe B, havingconical inner extremity, as set forth.

LENOX SIMPSON.

Witnesses:

J. A. KURTZ, W. D. THOMAS.

